I've been getting my Corion from ReliableRx for quite a few years now and recently noticed that I rec'd Corion-C 5000 instead of the original Corion 5000. Do you have any idea what the change is? I was reading some boards and a few of them implied that Corion in general was one of the stronger HCG's available out there. Is that your opinion as well? Just trying to get a handle on why they put the "C" in there and any other comments would be appreciated. Thanks